Wisconsin Mound Soil Absorption System and Area FillPractice Exam

Which term describes the amount of wastewater applied to a specific area in mound systems?

1. Basal loading rate

2. Surge loading rate

3. Gravity loading rate

4. Surface loading rate

The correct answer is: Basal loading rate

The correct term that describes the amount of wastewater applied to a specific area in mound systems is the basal loading rate. This measurement is crucial for ensuring that the soil can adequately treat the wastewater before it reaches the groundwater. The basal loading rate reflects the volume of effluent distributed over the land area in the mound system and is expressed as a rate per unit area, such as gallons per square foot per day. Understanding this term is essential because it helps in designing the mound system to prevent overloading, which can lead to contamination and system failure. Properly calculating the basal loading rate allows for effective treatment of the wastewater, ensuring that it is absorbed and filtered through the soil effectively. The design and performance of the mound system largely depend on accurately determining this parameter. Other terms, while related to wastewater application, convey different aspects of the loading process, such as the transient nature of wastewater flow or the method of water infiltration into the soil, but they do not specifically reflect the consistent application rate of effluent per area as the basal loading rate does.